Ijticolaus jamik



JAMIN,

Procssof Forming 3 Tight Joint Btwee-n the Mouth-Piece and Lid of Gas Betorts.

Patented 0ct.i9,i875.

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N IGOLAUS JAMIN, OF NEW YORK, .N. Y.

IMPROVEMENT lN PROCESSES 0F FORMING A TIGHT JOINT BETWEEN THE MOUTH-PIECE AND LID OF GAS-RETORTS.

Specification forming part of Letters Patent No. 169,001, dated October 19, 1875; application filed October 30, 1874.

CASE B.

To all whom it may concern:

Be it known that I, NICOLAUS JAMIN, of the city, county, and State of New York. have invented certain Improvements in Lids for Gas-ltetorts, of which the following is a specification:

The object of this invention is to provide efficient means of forming a tight joint between the lid and the mouth of a gas-retort; and. to this end, the invention consists in a novel process ot'luting the joint between the lid and the mouth of the retort by means of lead liquefied by the heat generated during the use of the retort, and, consequently, expanded in suitable grooves or receptacles formed around and between the mouth and retort-lid for the reception of the lead.

Figure l is a front view of a gasretort with thelid attached in a closed position, according to my invention. Fig. 2 is a vertical section of the same, taken in the vertical plane indicated by the line a; a: of Fig. l, and at rightangles to the latter. Fig'. 3 isaplan or top view of the same; and Fig. Aan inside face view of the lid detached from its place. Figs. 5 and 6 are sectional views, showing certain modifications.

A is the mouth-piece of the retort, made of iron, and attached to the retort-body in theordinary, or in any suitable way. in the flat outer or front face of this mouth-piece are provided one, two, or more angular ribs, a, arranged concentric with the month or opening of the retort. B is the lid, which is hinged at one side to the mouth-piece A, as shown at b, and the flat inner face of which is formed with one, two, or more angular grooves, c, the same corresponding in number, shape, and size, and position with the angular ribs a on the face of the mouth-pieces. These grooves are deepened or recessed at intervals. as represented at fin Fi 4, and in dotted outline in Fig. 2.

When the lid is brought to its place preliminary to the use of the retort these recesses f are filled with pieces or ingots of lead or other soft metal, and this soft metal,

being subsequently melted by the heat produced during the use of the retort, runs into and fills all the minute crevices in thejoint formed between the inner face 01' the lid B and the corrcs mnding faceof tho month-piece A, therebyluting or sealing the said joint against the escape and consequent waste of the gas generated within the retort aforesaid.

Fixed upon the lid B is an arm or bracket, 121, through which passes a screw, (3, the rounded or threadless inner end of this screw fitting into a socket in the outer surface of'the lid, and its threaded portion working through a nut formed in the hub or center of a spider, l), which latter is constructed with radial arms at extending beyond the periphery of the lid. Upon the adjacent circumference of the mouth piece A are pivoted catches or latches F, into the notches r of which the extremities ofthe aforesaid arms a are placed. This done. the screw U is turned to bring the spider outward, so that (its arms being held by the latches F) the lid is forced snugly inward against the face of the mouth-piece, with the angular ribs of the latter fitting into the angular grooves of the former.

The spider having a bearing at different points along the circumference of the coincident lid and mouth-piece forces the latter into snug contact with the former at all parts of such circumference when the lid is actuated through the said spider by the screw 0, as just herein fully set forth. This arrangement of parts, therefore, brings the lid and mouthpiece into as close contact, and forms as tighta joint, as can be secured by purely mechanical means, while the thermal action of the retort itself when in'use, by melting the lea-den or other soft-metal ingots, supplements the said means to secure a joint practically impervious to the outward passage of g'tlSIl'Olll the retort when in active op eration.

When desired, the inner surface of the lid B may be made as shown in Figs. 5 and 6, the ribs on the mouthpiece abutting against said surface of the lid, the intermediate spaces being provided with the filling, as hereinbefore set forth.

What 1 claim as my invention is- The improved process of providing a tight joint between the mouth of a gas-retort and thelid thereof, by means of lead liquefied by the heat generated during or by the normal use of the retort, and confined in grooves or receptacles provided between the mouth and lid aforesaid, substantially in the manner described.

NICOLAUS J AMIN.

Witnesses: JAMES A. WHITNEY, A. NIOQLLET. 

